PySide2 vs. PyQt5 bindings for the popular Qt library for creating desktop applications. They allow developers to create graphical user interfaces (GUIs) using Python rather than C++, the language in which Qt is originally written. This blog post will look at the similarities and differences between PySide2 and PyQt5.
First, let’s start with some background information on Qt. Qt is a cross-platform application framework widely in use for creating desktop applications, mobile apps, and systems. It provides a wide range of widgets and tools for building user interfaces and classes for handling network communication, databases, and other everyday tasks.
PySide2 vs. PyQt5 are both bindings for the Qt library, which means that they provide a way for Python developers to use the Qt API in their programs.
However, some critical differences between the two libraries may make one more suitable for a particular project than the other.
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Contents
Difference between pyside2 and pyqt5
The critical differences between Pyside2 vs. Pyqt5 are as follows:
Licensing
The main differences between these two are the way it licences. PySide2 releases under the LGPL, which means it can be in use in open-source and commercial projects without additional fees. PyQt5, on the other hand, is released under the GPL and a commercial license.
If you want to use PyQt5 in a commercial project, you will need to purchase a commercial license from Riverbank Computing, the company that develops and maintains PyQt5.
Maintenance
Another difference between the two is the way they maintain and develop. PySide2 develop and maintain by the Qt Project. 
A collaboration between The Qt Company, KDAB, and other companies and individuals. PyQt5, on the other hand, is developed and maintained by Riverbank Computing.
Functionality
In terms of functionality, PySide2 and PyQt5 are very similar. Both bindings provide a complete set of Qt classes and functions for creating desktop applications.
And both support the same range of platforms (Windows, MacOS, Linux, etc.). The main difference is in the API (Application Programming Interface) design, slightly different between PySide2 and PyQt5.
Community Support
The most important thing to note here is that PyQt5 has been in the market for a long time and has a huge following and community support. 
While PySide2 is relatively new and still building its community. PyQt5 has a lot of third-party libraries and modules that are built on top of it, which makes it more versatile.
API (Application Programming Interface)
The APIs of PySide2 and PyQt5 is also slightly different. PySide2 is more pythonic; it follows the python conventions in naming and API design, while PyQt5 is more C++-like. 
This makes PySide2 easier to learn and use for Python developers.
Python Version
PyQt5 is available for Python 3 only, and PySide2 is available for Python 3 and Python 2.7.
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CONCLUSION
When it comes to choosing between PySide2 and PyQt5, it ultimately depends on your specific needs and preferences. If you’re working on a commercial project and don’t want to worry about purchasing a commercial license, then PySide2 is the better choice. If you’re more comfortable with the PyQt5 API and have experience working with it, then PyQt5 might be the better choice.
In conclusion, PySide2 vs. PyQt5 are great libraries for creating desktop applications with Python. And the choice between the two will depend on the specific requirements of your project.
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